Automatic merge from submit-queue (batch tested with PRs 54436, 53148, 55153, 55614, 55484). If you want to cherry-pick this change to another branch, please follow the instructions <a href="https://github.com/kubernetes/community/blob/master/contributors/devel/cherry-picks.md">here</a>.
Support multizone clusters in GCE and GKE e2e tests
**What this PR does / why we need it**:
For multi-zone clusters we can't rely on zone parameter for fetching information on Instance Groups. Instead we first fetch the zone the group is in to use in subsequent calls.
Note that current version of the code does not work for multi zone clusters at all.
**Release note**:
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NONE
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